DIFF Subgroup Additional Only
C09C 2200/40 Interference pigments comprising an outermost surface coating
Full Title
Compositional and structural details of pigments exhibiting interference colours > Interference pigments comprising an outermost surface coating
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Note: 3 CPC extensions are marked as secondary classification only.